haproxy commands

################### #全局配置信息 ############################## #参数是进程级的, usually associated with the operating system (OS) #########GlobalMaxconn 20480 #默认最大连接数Log 127.0.0.1 local3 #[err warning Info Debug]Chroot/var/haproxy #chroot运行的路径UID #所属运行的用户uidGID #所属运行的用户组Daemon #以后台形式运行haproxyNbproc 1 #进程数量 (multiple processes can be set to improve performance)Pidfile/var/run/haproxy.pid #haproxy的pid存放路径, the user who

Web schemaDescribe the purpose of each server:1, Haproxy to achieve the back-end Web server load Balancing2, keepalived to achieve the high availability of haproxy3, Apache static page access to implement4. Dynamic page access for Aoache dynamicsWhat is keepalived?Keepalived is a routing software written in C. The main goal of this project are to provide simple and robust facilities (capability) for loadbalancing and high-availability to Li Nux system

Introduction: The difference between LVS and HaproxyLvs:1, strong anti-load capacity, is the work in the Network 4 layer on the distribution only, no flow generation;2, no flow, to ensure that the performance of the Equalizer IO will not receive the impact of large traffic;3, the application of a wide range, because LVS work in the 4 layer, so it can almost all applications to do load balancing4, the work is stable, because of its own resistance to load capacity is very strong, self has a comple

#!/bin/bash#created by Teddylu on 2014-1-15#used for haproxy-1.4.26Base= "/application/haproxy"prog= $BASE/sbin/haproxypidfile= $BASE/var/run/haproxy.pidconffile= $BASE/conf/haproxy.confCase "$" inStart# $PROG-F $CONFFILE >/dev/null 2>1$PROG-F $CONFFILE;;Statusif [!-f $PIDFILE]; Thenecho "pid not Found"Exit 1FiFor PID in $ (cat $PIDFILE); Todokill-0 $pidRetval= "$?"if [! "$RETVAL" = "0"]; Thenecho "Process

Haproxy Proxy to build a highly available Web clusterStatus code for HTTP protocol response:200:ok301: Redirect404:not found403:forbidden501:internal ErrorHAProxy:1, it's working principle is proxy agent. After the client sends the request to Haproxy, Haproxy sends the request to the Web server for the user, the Web server responds to the

The company recently had a project because users are concerned that a single machine can not afford to use the maximum number of users, the application cluster requirements. We designed the application cluster architecture according to the application situation. The architecture diagram is as follows: Features for deploying application clusters: 1. Front-end Agent load balancing Because the user environment infrastructure uses the virtualization cluster platform, the server uses the virtua

Document directory About SSL certificates Others Install haproxy by the way: Some practical problems and solutions Recently, Stunnel is used as a transparent proxy, and haproxy is used as an SSL solution. Stunnel is added between the user and the original reverse proxy, so that the user and Stunnel can use SSL, the real Web after Stunnel does not need to bear the HTTPS overhead. Record the configu

Comparison of haproxy lvs nginx Load Balancing For the software that implements load balancing, let's take a look at it in detail. In terms of performance and stability, LVS is the best, basically reaching 60% of the performance of F5 hardware equipment, and other 10% are a little difficult. However, the configuration is also the most troublesome because of LVS, and the Health Check requires configuring Ldirector. Other

Haproxy is a highly available, load-balanced, and TCP-and HTTP-based agent software, Haproxy is completely free, with Haproxy can quickly and reliably provide a proxy solution based on TCP and HTTP applications. Haproxy applies to those Web sites that are heavily loaded, which typically require session maintenance or s

participate in the loadThe larger the weight defaults to 1.weight, the greater the weight of the load.Max_fails: The number of allowed requests failed defaults to 1. Returns the error Proxy_next_upstream module definition when the maximum number of times is exceededFail_timeout:max_fails after a failure, the time of the pause.Backup: All other non-backup machines request backup machines when down or busy. So this machine will be the lightest pressure. Third,

HAProxy "http_request_forward_body ()" Integer Overflow Vulnerability Release date:Updated on: Affected Systems:Haproxy 1.5.xDescription:CVE (CAN) ID: CVE-2014-6269 HAProxy is a TCP/HTTP Load balancer. In versions earlier than HAProxy 1.5.4, when processing the "start of value" variable in the HTTP message structure, the "http_request_forward_body ()" functio

Comparison of load balance between LVS, Haproxy and NginxFrom the performance and stability of the most bull LVs, basically reached the F5 hardware equipment 60% performance, a few other 10% are a bit difficult. But because of the LVS bull, configuration is the most troublesome, and health testing needs to be configured Ldirector, other haproxy and nginx themselves, and the configuration super simple.If the

The haproxy-1.4 version agent is always used, and SSL configuration is not supported, the haproxy-1.5 version is supported, so the version is updated for testing. You can use the original Apache SSL Certificate file for simple processing on haproyx.Originally intended to use haproxy-1.4 penetration, but to back-end servers to configure SSL, so configured on the H

[[Email protected] ghn. War] # Cat index. jsp Information from 192.168.1.60 (63 IP address changed to 63 above) [[Email protected] ghn. War] # pwd /Usr/local/JBoss/Server/JBoss-ghl/deploy/ghn. War [[Email protected] bin] # Cat jboss-gh1.sh #! /Bin/bash /Usr/local/JBoss/bin/run. Sh-C JBoss-ghl-B 0.0.0.0-djboss. Service. Binding. Set = ports-01-djboss. messaging. serverpeerid = 1 [[Email protected] bin] # pwd /Usr/local/JBoss/bin ./Jboss-gh1.sh START process The JBoss configuration is

I built the Tomcat+nginx load Balancer cluster, the LVM load Balancing cluster, I'm going to get a haproxy load Balancer cluster, the three clusters I have to realize the LVS performance is really good (DR) but in the construction process is too cumbersome, Nginx is the use of upstream module cluster but the cluster node failure check function is not enough performance and LVM is a bit far away, so today to a middle person haproxy.One , build

The current development trend of the website for the use of network load balancing is as the scale of the website increases according to different stages to use different technologies:One is through hardware. Common Hardware includes expensive NetScaler, F5, radware, array, and other commercial load balancers, it has the advantage of a professional maintenance team to maintain these services. The disadvantage is that the cost is too large. Therefore, it is not required for small network services

Recently, the company had a project where users worried that a single machine could not afford the most users, and they required to use the application cluster. We designed the application cluster architecture based on the application situation. The architecture diagram is as follows: 650) this. width = 650; "style =" border-bottom: 0px; border-left: 0px; margin: 0px; border-top: 0px; border-right: 0px "title =" logical architecture "border =" 0 "alt =" logical architecture "src =" http://www.bk

1. Experimental Topology as follows, this is done with NGINX Port-based virtual host, easy to test later 650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/54/6B/wKioL1SBuUmgED6_AAEIceBESQw873.jpg "title=" t1.jpg "alt=" wkiol1sbuumged6_aaeicebesqw873.jpg "/> 2. Preparation before installationHaproxy Domestic Download You knowkeepalived www.keepalive.orgSync time#ntpdate pool.ntp.org3.haproxy installation ( same as Main and standby node insta

Because the company needs to be on-line HTTPS, so for HTTPS need to do stress testing, using the same encryption strength of the certificate, respectively, Haproxy and nginx to do stress testing, and then CPU usage comparison:The following are 1000 request stress tests for the same URL and background server:First time Haproxy 1000 times HTTPS pressure test650) this.width=650; "src=" Http://s2.51cto.com/wyfs

Description: The following references the contents of the sixth chapter of "Building a highly available Linux server" Fuqin.It is relatively simple to build a high-availability environment for load balancing, mainly to understand the principles. This article describes the pros and cons of three load balancers so that they can be used in real-world production applications by demand.At present, the online environment in the application of more load balancer hardware has F5 big-IP, software has Lvs